Help complete the Mega Drive library for research!
This is of particular importance to EU folks

Hey guys—it's recently come to my attention that despite nearly 15 years, there are still Mega Drive games which haven't been dumped—and we're not talking prototypes here. These are specific-region games, which are of particular interest for learning adaptive differences and finding altered/prototype content—think the difference between Sonic 1 (JUE) and Sonic 1 (J). The good news is that you can help complete this list by checking through your own library to see if you have these games and volunteering to have them dumped. You will receive your cartridges back afterwards and the warm, fuzzy feeling of knowing you helped contribute to the Sega scene.

I was about to say that I've never seen it around, then I just checked up Wiki and apparently the only PAL version was the one released in Australia. While I know wiki's aren't 100% right, I feel quite confident that a European one doesn't exist.

Captain Planet and the Planeteers was not an official release in Japan — it's either unlicensed or doesn't exist at all.

Flicky JP was Game Toshokan/SegaNet/Meganet exclusive; we'll have to go back to where the other such games were dumped and see. There was also a Columns on that service but no clue if there's a difference and there's a 50%+ chance the compilations have the retail version...

There's a bunch of undumped unlicensed games as well but I don't know them all... And there are possible alternate revisions of other games...

I checked the stuff on the list that was released on VC and the only one with a different rom was Phantasy Star 4 EU. I released the rom image of that some time a go in my VC Patches topic. Maybe you can push that.

Also, drx has a final rom archive that might possibly have some stuff you're looking for.

EDIT: Actually aaaaaaaaaaaaaa I checked Shining Force EU and that has a different rom too. I guess you want it uploaded?

We should at least dump Phantasy Star IV and compare that ROM to this one first... Also TIL no-intro's site (not the group itself) IS recording Virtual Console releases, as part of the custom DAT on Wii DLC.

Actually meh — I've been maintaining a list of undumped and incorrectly dumped games on the Sega Retro wiki (including the recent homebrew — you probably won't want to dump that, or at least not say that you have; they're on the list for now solely as matter of fact). Here is the list. I'll be maintaining this as time goes on, so keep on the lookout. One of my other projects right now is also to figure out what Game Gear games are incorrectly named in the no-intro ROM set, which should lead to an undumped Game Gear list — but as the page says, if anyone has a collection of US Game Gear games you'd be willing to donate to SMS Power! to dump, please do